Description
Vacuum smelting combine with rolling and heat treatment;
Small and closely crystalline grain without any defect;
Strong fatigue resistence with heat resistence and wear resistence.
The crystallization wheel assembly structure includes a casting groove for the wheel body and the outer perimeter wall of the wheel, and a metal filler is inserted in the wheel body between the inner side wall of the casting groove and the outer side wall of the wheel body. The heat transfer coefficient of the metal filler material is lower than that of the wheel body material, and the metal filler extends out of the inner perimeter wall of the wheel body. The wheel body is arranged between two turntables, and the inner side of the outer edge of the turntable is provided with a step surface suitable for the inner wall of the wheel body and the inner wall of the metal filler. The metal filler and the turntable are welded together to assemble the wheel body, metal filler and the turntable into a whole.